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	Oxygen
milkyboy Hobbyist Posts: 88 Kudos: 81 Votes: 4 Registered: 03-Dec-2005	Do UV sterilisers and/or fluid bed filters remove any of the oxygen in the water? If so, is there a way to increase the oxygen without the use of an airstone or CO2 kit? Milkyboy
Posted 08-Mar-2006 10:42
sirbooks Moderator Sociopath Posts: 3875 Kudos: 5164 Votes: 932 Registered: 26-Jul-2004	UV sterilizers don't affect oxygen levels, but the fluidized bed filters do. The massive numbers of bacteria in the filter use oxygen from the water and replace it with carbon dioxide, so you may need to use a method of adding more oxygen. One way is with a powerhead aimed at the surface of the water. Another is simply to lower the tank's water level and let the output from the filter fall onto the surface and agitate it enough to allow for higher oxygen levels. And when he gets to Heaven, to Saint Peter he will tell: "One more Marine reporting, Sir! I've served my time in Hell."
Posted 08-Mar-2006 14:40
Bob Wesolowski Mega Fish Posts: 1379 Kudos: 1462 Registered: 14-Oct-2004	Remember - airstones *DO NOT* add oxygen. They create a surface disturbance that aids in the exchange of gases between air and water. What you want to do is increase the surface agitation of your aquarium if you want to increase dissolved oxygen. This can be accomplished with a current created by a powerfilter, the movement created by a spraybar (whether of not it splashes the surface) or the cascade of water from a HOB. __________ "To steal ideas from one person is plagiarism; to steal from many is research." researched from Steven Wright
Posted 09-Mar-2006 18:16
Fallout Moderator Communications Specialist Posts: 6416 Kudos: 4053 Votes: 742 Registered: 29-Jul-2000	Another is simply to lower the tank's water level and let the output from the filter fall onto the surface and agitate it enough to allow for higher oxygen levels. ehhhhhhhhhhh. I thought that by having the water come out and across the surface will agitate much more than letting it fall. The falling water will create current underneath the surface, but not really promote gas exchange. You can test this by putting some food on the water in both situations. See what stirs up more.
Posted 09-Mar-2006 22:57
sirbooks Moderator Sociopath Posts: 3875 Kudos: 5164 Votes: 932 Registered: 26-Jul-2004	True, it's not as helpful as a powerhead or an airstone. The filter output still will help oxygenate the water, even if not a whole lot. I was just listing a method which could be used without the purchase of additional equipment or use of an airstone. And when he gets to Heaven, to Saint Peter he will tell: "One more Marine reporting, Sir! I've served my time in Hell."
Posted 10-Mar-2006 04:07
milkyboy Hobbyist Posts: 88 Kudos: 81 Votes: 4 Registered: 03-Dec-2005	The reason I do not want an airstone in my tank is because I don't like the look of it. If I put them in my sump will it still work? Milkyboy
Posted 10-Mar-2006 14:57
Fallout Moderator Communications Specialist Posts: 6416 Kudos: 4053 Votes: 742 Registered: 29-Jul-2000	Yes, as long as the bubbly goodness is reaching the surface of the water or someplace where it can interact with the atmosphere, an airstone will work.
Posted 10-Mar-2006 15:55


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